About 106,000 results
Open links in new tab
  1. Valence (chemistry) - Wikipedia

    Valence is generally understood to be the number of chemical bonds that each atom of a given chemical element typically forms. Double bonds are considered to be two bonds, triple bonds to be three, …

  2. VALENCE Definition & Meaning - Merriam-Webster

    : the combining power of an atom as shown by the number of electrons in its outermost energy level that are lost, gained, or shared in the formation of chemical bonds.

  3. valence - Wiktionary, the free dictionary

    Dec 25, 2025 · A valence diagram of methane showing that one carbon atom can combine with a maximum of four hydrogen atoms, or that it makes four electrons available to form covalent chemical …

  4. VALENCE | definition in the Cambridge English Dictionary

    VALENCE meaning: the ability of an atom to combine with other atoms, measured by the number of electrons it will…. Learn more.

  5. 4.4: Valence - Chemistry LibreTexts

    This capacity is called valence, and it varies periodically with increasing atomic weight. The noble gases all have valences of 0 because they almost never combine with any other element. H and Cl both …

  6. Valence Definition - Intro to Chemistry Key Term | Fiveable

    It refers to the number of electrons in the outermost shell of an atom that are available for forming chemical bonds with other atoms. The valence of an atom is directly related to its position in the …

  7. VALENCE Definition & Meaning | Dictionary.com

    The valence is determined by the number of electrons that an atom can lose, add, or share. An atom's valence is positive if its own electrons are used in forming the bond, or negative if another atom's …

  8. Valence | Atomic structure, Electron configuration & Bonding ...

    valence, in chemistry, the property of an element that determines the number of other atoms with which an atom of the element can combine. Introduced in 1868, the term is used to express both the power …

  9. Valence and conduction bands - Wikipedia

    In solid-state physics, the valence band and conduction band are the bands closest to the Fermi level, and thus determine the electrical conductivity of the solid. In nonmetals, the valence band is the …

  10. 1.3: Valence electrons and open valences - Chemistry LibreTexts

    A valence electron is an electron that is associated with an atom, and that can participate in the formation of a chemical bond; in a single covalent bond, both atoms in the bond contribute one …